thanks for watching

1. A.o.A
9/10/2019Group no :02
1

2. GROUP
NO:2
GROUP NO :02
2

3. Categories and types of computer
9/10/2019Group no:2
3

4. Computer is classified on the basis of size , speed,
processing power and price. The distinction between
these categories is something not very clear.
9/10/2019
group no:2
4
Computer can divided in different/ following
categories
 Microcomputer or personal computer
 Mini computer
 Mainframe computer
 Super computer
 Embedded computer

5.  Personal computer is also called
micro computer.
 It is introduced in
 It is used to be one person at a
time.
 It consists of a processor, memory
and it contains a communication
device .
 The price of personal computer is
from several hundred to several
dollars.
 Most commonly used personal
computer are PC and Apple, some
pc compatible computers include
dell and Toshiba.
9/10/2019Group no:2
5

6. I. Cheap and easy to use
II. Limited support for input and output
III. Storage capacity
IV. Software support
V. Architecture
VI. Number of operator
VII. Data storage
VIII.Soft copy out put
9/10/2019group no:2
6

7. 9/10/2019Group no:2
7
Desktop
computers
Notebook
computers
Tablet PC

8.  DC are the most common
type of the personal
computer.
 It designed in all components
fit on a desk or table.
 Some desktop computer is
called tower model
 In tower model , both
monitor and system unit are
placed in a table.
9/10/2019Group no:2
8

9. All in one computer : it is a less expensive computer and monitor
and system unit are combined into single device.
Workstation computer : it was introduced in early it is more
powerful personal computer, it is used for calculation , graphics
work and mostly used by engineers , graphics artiest and architects.
Server computer : manages the resources of network, it control
access to the software hardware of network , and also provides
centralized area to store data, information and software.
9/10/2019Group no:2
9

10.  Note book computer is also called laptop , it is small in size and can be
placed easily In lap, only one user can use them at a time.
 A notebook computer contains CPU, memory capacity and disk drives.
The keyboard and touchpad in notebook computer are placed on the top of
system unit.
9/10/2019Group no:2
10

11.  Tablet pc is introduced in 2002, it is like
notebook , we can work with digital pen, the
user gives instructions with pen , keyboard
and voice keyboard.
Two basic types of tablet pc
I. Slate tablet PC
II. Convertible PC
9/10/2019Group no:2
11

12. Mini computer
 Mini computer is also known as handheld computer .
 It contains small screen and small keyboard.
 Handheld computer usually have no disk derive but the program and data store
on chip in the system unit.
 Mini computer are often used by small and medium- sized companies or
department.
Types of mini computer
 Personal digital assistant
 Smart phone
Some examples of mini computer are as follows
1. Prime 9955
2. Oppo a37f
3. Hp 3000
9/10/2019Group no:2
12

13.  Main frame computer is a large computer in term of prices, power and speed.
 It is introduced in 1975.
 It is powerful then mini computer , it consists of multiple processor.
 It is specially designed to perform multiple tasks for multiple user simultaneously.it
Is upgraded while it is running.
 These computer are stored a large amount of data , information and programs
 The price of main frame computer is several hundred dollars can be up to million
dollars.
Some examples of mainframe computer are as follows
1. IBM S-390
2. DEC 10
Mainframe computer are mostly used in banks educational departments and
Government institutions.
9/10/2019
Group no:2
13

14.  Super computer is the fastest and most powerful computer, it is biggest in size
and most expensive in price than any computer
 It is first developed in early 1970s
 It has a large capacity and can store several thousand times more than the
average desktop computer.
 It can process trillion of instructions in one second
 The cost of one super computer is billion dollars
 Super computer are mostly use in industrial and business ,many Hollywood
movies use it for animation purpose , government use for calculation and heavy
jobs.
Some example:
1. Deep runner
2. Blue gene
9/10/2019Group no:2
14

15.  An embedded computer is designed for special purposes ,it works as a
larger product.
 These computer is small and have limited hardware , these computer
perform various functions according to the requirements of the product
in which they are embedded.
Embedded computers are mostly used in common product
• Electronics : (Video recorders , DVD players etc.)
• Home devices : (security monitoring systems and programmable
microwave ovens)
• Auto mobilles: car
Controller, airbags controller
• Machine controller,
Blood pressure monitors.
9/10/2019Group no:2
15

16.  An analog computer recognize data
 Continuous measurement of physical property
 Voltage, pressure , speed and temperature are some physical properties that can
measured in this ways
 Low memory and fewer functions
 Difficult to operate and use
 Mainly used in engineering and medicine
Examples
• Used to measures the car speed
• Analog computer measure time
• Thermometer is an analog device
9/10/2019Group no:2
16
Different types of computers are as follows

17. Hybrid computers
 Combination of both(analog and digital computer)
 The best characteristics of both the analog and digital
 Accept data in analog and digital form
9/10/2019
group no:2
17
Digital computers
 computer processes the data in numerical form
 These values 0 and 1
 These PC are mostly used in home and offices , these are fast
 Every thing is described in two states of on and off
Examples:

18. The end
Any questions????
9/10/2019Group no:2
18